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The Goodman B4022700 is a genuine OEM 3-inch in-shot burner built as a direct replacement for the WFM18090S4BXCC gas furnace and other compatible Goodman/Amana models. Each burner directs a precise gas/air mixture into the heat exchanger for clean, efficient combustion. Over time, rust, scale, or a distorted burner port can cause delayed ignition, flame rollout, or a noisy 'boom' start. Installing a fresh OEM in-shot burner restores crisp lighting and even flame carryover across the burner rack.
Our OEM Goodman burner is stamped to the factory port geometry that governs flame shape and ignition timing. Generic burners often vary in venturi length and port angle, which can cause uneven heating or ignition faults. OEM ensures the flame lines up correctly with the igniter and flame sensor.
Moderate (2/5). Shut off gas and power, remove the burner assembly, swap the affected burner, and confirm alignment with the manifold orifice, igniter, and sensor. Basic hand tools required. Verify flame quality after startup.